Over the last decade impressive progress has been made in the theoretical understanding
of transport properties of clean, one-dimensional quantum lattice systems. Many physically …

Efficient and stable algorithms for the calculation of spectral quantities and correlation
functions are some of the key tools in computational condensed-matter physics. In this paper …

We propose a quantum-classical hybrid algorithm of the power method, here dubbed as the
quantum power method, to evaluate H^ n| ψ⟩ with quantum computers, where n is a non …

The preparation and computation of many properties of quantum Gibbs states is essential for
algorithms such as quantum semidefinite programming and quantum Boltzmann machines …

In a recent milestone experiment, Google's processor Sycamore heralded the era of
“quantum supremacy” by sampling from the output of (pseudo-) random circuits. We show …

We study trace estimators for equilibrium thermodynamic observables that rely on the idea of
typicality and derivatives thereof such as the finite-temperature Lanczos method (FTLM). As …

Quantum spin liquids are long-range entangled states of matter with emergent gauge fields
and fractionalized excitations. While candidate materials, such as the Kitaev honeycomb …

Loosely speaking, the concept of quantum typicality refers to the fact that a single pure state
can imitate the full statistical ensemble. This fact has given rise to a rather simple but …

We demonstrate that numerical linked cluster expansions (NLCE) yield a powerful approach
to calculate time-dependent correlation functions for quantum many-body systems in one …

We study the frequency dependence of the optical conductivity Re σ (ω) of the Heisenberg
spin-1 2 chain in the thermal and near the transition to the many-body localized phase …